. age was 25.7 years, and mean gestational age was 33.9 weeks; 93% of the patients were on magnesium sulfate and 71% on labetalol at the time of the study.En caso de cifras superiores administraríamos bolos de labetalol 10mg ev. (si no controlabamos la tensión de este modo, valoraríamos una perfusión continua).